CN113455455B - Pond oxygen monitoring and maintaining equipment - Google Patents
Pond oxygen monitoring and maintaining equipment Download PDFInfo
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- CN113455455B CN113455455B CN202110841426.XA CN202110841426A CN113455455B CN 113455455 B CN113455455 B CN 113455455B CN 202110841426 A CN202110841426 A CN 202110841426A CN 113455455 B CN113455455 B CN 113455455B
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- oxygen
- bearing box
- conveying pipe
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01K—ANIMAL HUSBANDRY; CARE OF BIRDS, FISHES, INSECTS; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
- A01K63/00—Receptacles for live fish, e.g. aquaria; Terraria
- A01K63/04—Arrangements for treating water specially adapted to receptacles for live fish
- A01K63/042—Introducing gases into the water, e.g. aerators, air pumps
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- Life Sciences & Earth Sciences (AREA)
- Environmental Sciences (AREA)
- Marine Sciences & Fisheries (AREA)
- Animal Husbandry (AREA)
- Biodiversity & Conservation Biology (AREA)
- Aeration Devices For Treatment Of Activated Polluted Sludge (AREA)
- Oxygen, Ozone, And Oxides In General (AREA)
Abstract
The invention is suitable for the technical field of relevant aquaculture equipment, and provides pond oxygen monitoring and maintaining equipment, which comprises an oxygenation device, a dissolved oxygen monitoring device and a control device, wherein the oxygenation device comprises: a carrying case; the floating piece is fixed on the bearing box; the oxygen conveying pipe is arranged on the bearing box in a sliding mode, one end of the oxygen conveying pipe extends out of the bearing box, and the oxygen conveying pipe is used for conveying oxygen into the pond; the oxygen supply mechanism is used for supplying oxygen to the oxygen catheter; the lifting mechanism is used for driving the oxygen conveying pipe to linearly reciprocate along the direction vertical to the floating piece; the connecting assembly is used for communicating the oxygen supply mechanism and the oxygen supply pipe; the oxygen therapy pipe extends to one end outside the bearing box and is provided with a one-way valve, so that oxygen can be automatically supplied to different water depths.
Description
Technical Field
The invention belongs to the technical field of aquaculture related equipment, and particularly relates to pond oxygen monitoring and maintaining equipment.
Background
Chinese aquaculture, especially pond culture, is at the front of the world, where the effect of oxygen content in the pond on the aquatic product is particularly important.
At present, to the problem of oxygen content in the pond, supply oxygen through oxygenation device usually, but oxygenation device can't monitor pond oxygen concentration, keeps normally open state, causes the energy extravagant easily.
To above-mentioned problem, during the practical application, breed the worker and mostly combine with the oxygenation device through dissolved oxygen monitoring devices, realize supplying with pond oxygen in real time, but the aeration point is fixed among the oxygenation device, can't realize carrying out the oxygen suppliment to the position of the pond different degree of depth, is unfavorable for aquaculture.
Disclosure of Invention
The embodiment of the invention aims to provide pond oxygen monitoring and maintaining equipment, and aims to solve the problems that ventilation points in an oxygenation device are fixed, oxygen supply to positions at different depths of a pond cannot be realized, and aquaculture is not facilitated.
The embodiment of the invention is realized in such a way that the pond oxygen monitoring and maintaining equipment comprises:
the oxygenation device is used for supplying oxygen to the pond;
the dissolved oxygen monitoring device is fixed at the bottom of the oxygenation device and used for monitoring the concentration of dissolved oxygen and feeding the concentration back to the oxygenation device; and
The control device controls the start and stop of the oxygenation device according to the feedback effect monitored by the dissolved oxygen monitoring device;
the oxygenation device comprises:
the bearing box is used for bearing the oxygenation device;
the floating piece is fixed on the bearing box and used for providing buoyancy for the bearing box;
the oxygen conveying pipe is arranged on the bearing box in a sliding mode, one end of the oxygen conveying pipe extends out of the bearing box, the oxygen conveying pipe is used for conveying oxygen into the pond, and the number of the oxygen conveying pipes is not less than one;
the oxygen supply mechanism is arranged on the floating piece and connected with the control device, and provides oxygen for the oxygen supply pipe;
the lifting mechanism is arranged in the bearing box and is used for driving the oxygen conveying pipe to linearly reciprocate along the direction vertical to the floating piece; and
the connecting assembly is used for communicating the oxygen supply mechanism and the oxygen conveying pipe;
the oxygen therapy pipe extends to one end outside the bearing box and is provided with a one-way valve, and the flowing direction of the one-way valve is that one end of the oxygen therapy pipe in the bearing box flows to one end outside the bearing box.
Preferably, the oxygen supply mechanism includes:
the air pumping piece is arranged on the floating piece and is connected with the control device;
the protective box is sleeved outside the air extracting piece and is fixed on the bearing box and the floating piece; and
the air outlet pipe is communicated with the output end of the air pumping piece and is connected with the connecting component;
the input end of the air pumping piece is communicated with an air inlet pipe extending out of the protective box.
Preferably, the air extracting member is an air extracting pump.
Preferably, the lifting mechanism includes:
the rotating shaft is rotatably arranged in the bearing box shaft center;
the driving assembly is used for driving the rotating shaft to rotate;
the rotary disc is arranged on the rotating shaft;
the hollow base is arranged on the turntable, and one side of the hollow base, which is far away from the turntable, is an inclined plane which changes regularly; and
the pressure seat is attached to the inclined plane of the hollow base, one side, far away from the hollow base, of the pressure seat is fixedly connected with the oxygen conveying pipe, and the number of the pressure seats corresponds to that of the oxygen conveying pipe; and
The elastic piece is sleeved on the oxygen conveying pipe and is positioned between the pressure seat and the inner wall of the bearing box.
Preferably, the drive assembly comprises:
the connecting seat is rotatably connected with the rotating shaft, the connecting seat is fixed on the inner wall of the bearing box and is nested on the air outlet pipe, and the connecting seat is provided with an arc-shaped cavity communicated with the air outlet pipe;
a vent lumen disposed within the spindle;
the connecting hole is arranged on the rotating shaft and conducts the ventilation cavity and the arc-shaped cavity;
the action box rotates with the ventilation cavity and is fixed on the inner wall of the bearing box; and
the action tubes are arranged on the rotating shaft in the action box and are communicated with the ventilation cavity, and the number of the action tubes is a plurality;
the opening of the action tube faces the side wall of the action box, and the opening direction of the action tube is the same rotary direction.
Preferably, the connecting assembly comprises a hose for connecting the air outlet pipe and the oxygen therapy pipe.
Preferably, the apparatus further comprises:
the driving device is arranged on the oxygenation device and is used for driving the equipment to move; and
a wireless remote control mechanism for controlling the drive device.
According to the pond oxygen monitoring and maintaining equipment provided by the embodiment of the invention, the dissolved oxygen concentration in the pond is monitored through the dissolved oxygen monitoring device by arranging the oxygenation device, the dissolved oxygen monitoring device and the control device, if the dissolved oxygen concentration is lower than a preset value, the control device controls the oxygenation device to be started according to the feedback effect monitored by the dissolved oxygen monitoring device, at the moment, the oxygen supply mechanism supplies oxygen to the oxygen supply pipe through the connecting component, and the oxygen supply pipe linearly reciprocates along the direction vertical to the floating piece under the action of the lifting mechanism, so that oxygen is supplied to positions at different depths in the pond, oxygen is conveniently supplied to aquatic products at different depths, the content of the dissolved oxygen is improved, and the equipment is energy-saving and environment-friendly.
Drawings
Fig. 1 is a schematic structural diagram of a pond oxygen monitoring and maintaining device provided by an embodiment of the invention;
FIG. 2 is an enlarged view of FIG. 1 at A;
fig. 3 is a perspective structural view of a connecting seat in the pond oxygen monitoring and maintaining device provided in the embodiment of the present invention;
fig. 4 is a three-dimensional structural view of a hollow base in the pond oxygen monitoring and maintaining equipment provided by the embodiment of the invention;
fig. 5 is a perspective structural view of an action tube in the pond oxygen monitoring and maintaining equipment provided by the embodiment of the invention.
In the drawings: 1. a carrying case; 2. a float member; 3. a dissolved oxygen monitoring device; 4. a solar energy conversion assembly; 5. a protective box; 6. an air extraction member; 7. an air inlet pipe; 8. an air outlet pipe; 9. a connecting seat; 10. an arcuate cavity; 11. A rotating shaft; 12. connecting holes; 13. a vent lumen; 14. a first connecting rod; 15. a turntable; 16. a hollow base; 17. a pressure seat; 18. an oxygen delivery tube; 19. an elastic member; 20. an action box; 21. a second connecting rod; 22. An action tube; 23. a control device; 24. and a power supply assembly.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Specific implementations of the present invention are described in detail below with reference to specific embodiments.
As shown in fig. 1, a schematic structural diagram of a pond oxygen monitoring and maintaining device provided in an embodiment of the present invention includes:
the oxygenation device is used for supplying oxygen to the pond;
the dissolved oxygen monitoring device 3 is fixed at the bottom of the oxygenation device, and the dissolved oxygen monitoring device 3 is used for monitoring the concentration of dissolved oxygen and feeding back the concentration to the oxygenation device; and
the control device 23 is used for controlling the start and stop of the oxygenation device according to the feedback effect monitored by the dissolved oxygen monitoring device 3 by the control device 23;
the oxygenation device comprises:
the bearing box 1 is used for bearing the oxygenation device;
the floating piece 2 is fixed on the bearing box 1, and the floating piece 2 is used for providing buoyancy for the bearing box 1;
the oxygen conveying pipe 18 is arranged on the bearing box 1 in a sliding mode, one end of the oxygen conveying pipe 18 extends out of the bearing box 1, the oxygen conveying pipe 18 is used for conveying oxygen into the pond, and the number of the oxygen conveying pipes 18 is not less than one;
the oxygen supply mechanism is arranged on the floating piece 2 and connected with the control device 23, and provides oxygen for the oxygen supply pipe 18;
The lifting mechanism is arranged in the bearing box 1 and is used for driving the oxygen conveying pipe 18 to linearly reciprocate along the direction vertical to the floating piece 2; and
the connecting assembly is used for communicating the oxygen supply mechanism and the oxygen supply pipe 18;
one end of the oxygen tube 18 extending out of the carrying box 1 is provided with a one-way valve, and the flow direction of the one-way valve is that one end of the oxygen tube 18 located in the carrying box 1 flows to one end outside the carrying box 1.
In the embodiment of the invention, the dissolved oxygen concentration in the pond is monitored by the dissolved oxygen monitoring device 3, if the dissolved oxygen concentration is lower than a preset value, the control device 23 controls the oxygen increasing device to be started according to the feedback effect monitored by the dissolved oxygen monitoring device 3, at the moment, the oxygen supply mechanism supplies oxygen to the oxygen supply pipe 18 through the connecting component, and the oxygen supply pipe 18 linearly reciprocates along the direction vertical to the floating piece 2 under the action of the lifting mechanism, so that oxygen is supplied to positions at different depths in the pond, oxygen is conveniently supplied to aquatic products at different depths, the content of the dissolved oxygen is improved, and the energy conservation and the environmental protection are realized.
It should be noted that the dissolved oxygen monitoring device 3 is the prior art, for example, the dissolved oxygen monitoring device 3 may interact with dissolved oxygen through a fluorescent indicator, and then change the intensity or wavelength of light regularly according to the change of the dissolved oxygen concentration, so as to obtain a feedback result according to the change of the light intensity, which is only a monitoring technique herein, and is not described in detail herein, and it is sufficient to refer to the prior art to achieve the effect; in addition, the control device 23 is a conventional circuit integration, which is the prior art and will not be described again.
In one aspect of this embodiment, the oxygen supply mechanism includes:
the air extracting piece 6 is arranged on the floating piece 2, and the air extracting piece 6 is connected with the control device 23;
the protective box 5 is sleeved outside the air pumping piece 6, and the protective box 5 is fixed on the bearing box 1 and the floating piece 2; and
the air outlet pipe 8 is communicated with the output end of the air pumping piece 6, and the air outlet pipe 8 is connected with the connecting component;
the input end of the air exhaust piece 6 is communicated with an air inlet pipe 7 extending out of the protective box 5.
It should be noted that, by controlling the start and stop of the air extracting part 6 through the control device 23, the air extracting part 6 can extract the outside air, so as to provide oxygen; of course, the oxygen supply mechanism may also be used for exhausting by other air exhausting equipment such as a blower, and is not limited herein.
Preferably, the air pumping part 6 is an air pumping pump, and the power of the air pumping pump is large, so that the use requirement of the invention can be fully met.
As shown in fig. 1, 2 and 4, as a preferred embodiment of the present invention, the lifting mechanism includes:
the rotating shaft 11 is rotatably arranged in the axial center of the bearing box 1;
the driving assembly is used for driving the rotating shaft 11 to rotate;
the rotary table 15, the said rotary table 15 is mounted on said spindle 11;
the hollow base 16 is installed on the turntable 15, and one side, away from the turntable 15, of the hollow base 16 is an inclined surface; and
the pressure seat 17 is attached to the inclined surface of the hollow base 16, one side, far away from the hollow base 16, of the pressure seat 17 is fixedly connected with the oxygen conveying pipe 18, and the number of the pressure seats 17 corresponds to that of the oxygen conveying pipe 18; and
the elastic piece 19 is sleeved on the oxygen conveying pipe 18, and the elastic piece 19 is located between the pressure seat 17 and the inner wall of the bearing box 1.
In the embodiment of the present invention, when the driving assembly drives the rotating shaft 11 to rotate, the rotating shaft 11 drives the rotating disc 15 to drive the hollow base 16 to rotate, the hollow base 16 repeatedly extrudes the pressed seat 17 due to the inconsistent length of the hollow base 16, the pressed seat 17 is extruded to drive the oxygen delivery tube 18 to move downward, and the pressed seat 17 is driven to move upward by the elastic force of the elastic member 19, so as to implement a reciprocating linear motion.
It should be noted that the lifting mechanism can also be realized by directly adopting a crank-slider mechanism, and is not limited here; in addition, the elastic member 19 may be not only the spring shown in fig. 1, but also other elastic articles such as an elastic rubber sleeve, which is not limited herein; the slope of the hollow base 16 may be used.
As shown in fig. 1, 2, 3 and 5, as another preferred embodiment of the present invention, the driving assembly includes:
the connecting seat 9 is rotatably connected with the rotating shaft 11, the connecting seat 9 is fixed on the inner wall of the bearing box 1, the connecting seat 9 is nested on the air outlet pipe 8, and the connecting seat 9 is provided with an arc-shaped cavity 10 communicated with the air outlet pipe 8;
a ventilation cavity 13, wherein the ventilation cavity 13 is arranged in the rotating shaft 11;
the connecting hole 12 is arranged on the rotating shaft 11, and the connecting hole 12 conducts the ventilation cavity 13 and the arc-shaped cavity 10;
the action box 20 rotates with the ventilation cavity 13, and the action box 20 is fixed on the inner wall of the bearing box 1; and
the action pipes 22 are arranged on the rotating shaft 11 in the action box 20, the action pipes 22 are communicated with the ventilation cavity 13, and the number of the action pipes 22 is several;
The opening of the action tube 22 faces the side wall of the action box 20, and the opening direction of the action tube 22 is the same spiral direction.
In the embodiment of the present invention, when the air outlet pipe 8 provides air, the air enters the arc-shaped cavity 10 through the air outlet pipe 8, passes through the arc-shaped cavity 10 through the connecting hole 12, enters the ventilation cavity 13, and is finally discharged through the action pipe 22, and the air impacts the inner wall of the action box 20, so as to drive the rotating shaft 11 to rotate through the reaction of force.
It should be understood that the driving component can also directly adopt a motor and a transmission pair to drive rotation, and the scheme has the advantages of energy conservation and environmental protection; in addition, the connecting seat 9 is fixed on the inner wall of the carrying case 1 through the first connecting rod 14, and here, the connecting seat 9 may also be fixed in other manners without limitation, and the action box 20 is fixed on the inner wall of the carrying case 1 through the second connecting rod 21, and here, the action box 20 may also be fixed in other manners without limitation.
As another preferred embodiment of the present invention, the connection assembly includes a flexible tube for communicating the outlet tube 8 and the oxygen therapy tube 18.
In the present embodiment, when the air pumping member 6 starts pumping air, the air enters the aeration chamber 13 through the air outlet pipe 8, and at the same time, the air enters the oxygen conveying pipe 18 through the hose and is discharged to the pond.
As shown in fig. 1, as another preferred embodiment of the present invention, the apparatus further includes a power supply device, the power supply device includes a solar energy conversion module 4 mounted on the oxygen increasing device, the solar energy conversion module 4 is used for converting light energy into electric energy, the solar energy conversion module 4 is connected to a power supply module 24, and the power supply module 24 is used for storing electric energy and supplying power.
In the embodiment of the invention, the equipment can be further optimized through the arrangement, the self-supply of the equipment is realized, and the energy conservation and the environmental protection are realized.
As shown in fig. 1, as another preferred embodiment of the present invention, the apparatus further comprises:
the driving device is arranged on the oxygenation device and is used for driving the equipment to move; and
a wireless remote control mechanism for controlling the drive device.
In the embodiment of the invention, by arranging the driving device and the wireless remote control mechanism, the device can be controlled at any position on the pond manually, so that oxygen supply to different areas can be properly regulated, and aquaculture is more convenient and smooth.
It is stated that both the driving device and the wireless remote control mechanism are the basis of the prior art, and only the solution is optimized here, so that the usage effect is better.
The embodiment of the invention provides pond oxygen monitoring and maintaining equipment, an oxygen increasing device, a dissolved oxygen monitoring device 3 and a control device 23 are arranged, firstly, the dissolved oxygen concentration in a pond is monitored through the dissolved oxygen monitoring device 3, if the dissolved oxygen concentration is lower than a preset value, the control device 23 controls the oxygen increasing device to be started according to the feedback effect monitored by the dissolved oxygen monitoring device 3, at the moment, an oxygen supply mechanism supplies oxygen to an oxygen supply pipe 18 through a connecting component, the oxygen supply pipe 18 linearly reciprocates along the direction vertical to a floating part 2 under the action of a lifting mechanism, so that oxygen can be supplied to positions at different depths in the pond, oxygen can be conveniently supplied to aquatic products at different depths, the content of the dissolved oxygen is improved, and the equipment is energy-saving and environment-friendly.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.
Claims (4)
1. A pond oxygen monitoring and maintenance device, the device comprising:
the oxygenation device is used for supplying oxygen to the pond;
the dissolved oxygen monitoring device is fixed at the bottom of the oxygenation device and used for monitoring the concentration of dissolved oxygen and feeding the concentration back to the oxygenation device; and
the control device controls the start and stop of the oxygenation device according to the feedback effect monitored by the dissolved oxygen monitoring device;
the oxygenation device comprises:
the bearing box is used for bearing the oxygenation device;
the floating piece is fixed on the bearing box and used for providing buoyancy for the bearing box;
the oxygen conveying pipe is arranged on the bearing box in a sliding mode, one end of the oxygen conveying pipe extends out of the bearing box, the oxygen conveying pipe is used for conveying oxygen into the pond, and the number of the oxygen conveying pipes is not less than one;
the oxygen supply mechanism is arranged on the floating piece and connected with the control device, and provides oxygen for the oxygen supply pipe;
the lifting mechanism is arranged in the bearing box and is used for driving the oxygen conveying pipe to linearly reciprocate along the direction vertical to the floating piece; and
The connecting assembly is used for communicating the oxygen supply mechanism and the oxygen conveying pipe;
one end of the oxygen conveying pipe extending out of the bearing box is provided with a one-way valve, and the flowing direction of the one-way valve is that one end of the oxygen conveying pipe in the bearing box flows to one end outside the bearing box;
the oxygen suppliment mechanism includes:
the air pumping piece is arranged on the floating piece and is connected with the control device;
the protective box is sleeved outside the air extracting piece and is fixed on the bearing box and the floating piece; and
the air outlet pipe is communicated with the output end of the air pumping piece and is connected with the connecting component;
the input end of the air pumping piece is communicated with an air inlet pipe extending out of the protective box;
the lifting mechanism comprises:
the rotating shaft is rotatably arranged in the bearing box shaft center;
the driving assembly is used for driving the rotating shaft to rotate;
the rotary disc is arranged on the rotating shaft;
the hollow base is arranged on the turntable, and one side of the hollow base, which is far away from the turntable, is an inclined plane which changes regularly; and
The pressure seat is attached to the inclined plane of the hollow base, one side, far away from the hollow base, of the pressure seat is fixedly connected with the oxygen conveying pipe, and the number of the pressure seats corresponds to that of the oxygen conveying pipe; and
the elastic piece is sleeved on the oxygen conveying pipe and is positioned between the pressure seat and the inner wall of the bearing box;
the drive assembly includes:
the connecting seat is rotatably connected with the rotating shaft, the connecting seat is fixed on the inner wall of the bearing box and is nested on the air outlet pipe, and the connecting seat is provided with an arc-shaped cavity communicated with the air outlet pipe;
a vent lumen disposed within the spindle;
the connecting hole is arranged on the rotating shaft and conducts the ventilation cavity and the arc-shaped cavity;
the action box rotates with the ventilation cavity and is fixed on the inner wall of the bearing box; and
the action tubes are arranged on the rotating shaft in the action box and are communicated with the ventilation cavity, and the number of the action tubes is a plurality;
the opening of the action tube faces the side wall of the action box, and the opening direction of the action tube is the same rotary direction.
2. A pond oxygen monitoring and maintenance device according to claim 1, characterised in that the suction member is a suction pump.
3. A pond oxygen monitoring and maintenance device according to claim 1, wherein the connection assembly comprises a hose for conducting the outlet conduit and the oxygen delivery conduit.
4. A pond oxygen monitoring and maintenance device according to any one of claims 1 to 3, characterised in that the device further comprises:
the driving device is arranged on the oxygenation device and is used for driving the equipment to move; and
a wireless remote control mechanism for controlling the drive device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110841426.XA CN113455455B (en) | 2021-07-26 | 2021-07-26 | Pond oxygen monitoring and maintaining equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110841426.XA CN113455455B (en) | 2021-07-26 | 2021-07-26 | Pond oxygen monitoring and maintaining equipment |
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| Publication Number | Publication Date |
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| CN113455455A CN113455455A (en) | 2021-10-01 |
| CN113455455B true CN113455455B (en) | 2022-07-29 |
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| CN202110841426.XA Active CN113455455B (en) | 2021-07-26 | 2021-07-26 | Pond oxygen monitoring and maintaining equipment |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114793997B (en) * | 2022-03-14 | 2023-05-16 | 浙江省淡水水产研究所 | Noise reduction type oxygen supply equipment for aquaculture |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202364681U (en) * | 2011-11-23 | 2012-08-08 | 山东柯华健康科技有限公司 | Intelligent aeration system for fishpond |
| US10219491B2 (en) * | 2013-03-15 | 2019-03-05 | Pentair Water Pool And Spa, Inc. | Dissolved oxygen control system for aquaculture |
| CN206213026U (en) * | 2016-09-28 | 2017-06-06 | 昆明新希望动物营养食品有限公司 | pond intelligent oxygenation system |
| CN206699182U (en) * | 2017-05-07 | 2017-12-05 | 彭水县碧水清泉渔业有限公司 | Dissolved oxygen amount stabilising arrangement |
| CN209693789U (en) * | 2019-01-31 | 2019-11-29 | 云南靖源鱼类养殖有限责任公司 | A kind of sturgeon cultivation concentration oxygen-increasing device |
| CN110742006A (en) * | 2019-12-03 | 2020-02-04 | 上海海洋大学 | Lifting aerator for aquaculture |
| CN112997953A (en) * | 2021-02-04 | 2021-06-22 | 浙江省农业科学院 | Sedimentation type aerator |
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